Examples with KafkaCacheClientBudget io.aklivity.zilla.runtime.binding.kafka.internal.budget.KafkaCacheClientBudget used on opensource projects

Example 1 with KafkaCacheClientBudget

use of io.aklivity.zilla.runtime.binding.kafka.internal.budget.KafkaCacheClientBudget in project zilla by aklivity.

the class KafkaCacheClientProduceFactory method newStream.

@Override
public MessageConsumer newStream(int msgTypeId, DirectBuffer buffer, int index, int length, MessageConsumer sender) {
    final BeginFW begin = beginRO.wrap(buffer, index, index + length);
    final long routeId = begin.routeId();
    final long initialId = begin.streamId();
    final long affinity = begin.affinity();
    final long authorization = begin.authorization();
    assert (initialId & 0x0000_0000_0000_0001L) != 0L;
    final OctetsFW extension = begin.extension();
    final ExtensionFW beginEx = extension.get(extensionRO::tryWrap);
    assert beginEx != null && beginEx.typeId() == kafkaTypeId;
    final KafkaBeginExFW kafkaBeginEx = extension.get(kafkaBeginExRO::wrap);
    assert kafkaBeginEx.kind() == KafkaBeginExFW.KIND_PRODUCE;
    final KafkaProduceBeginExFW kafkaProduceBeginEx = kafkaBeginEx.produce();
    final String16FW beginTopic = kafkaProduceBeginEx.topic();
    final int partitionId = kafkaProduceBeginEx.partition().partitionId();
    final String topicName = beginTopic.asString();
    MessageConsumer newStream = null;
    final KafkaBindingConfig binding = supplyBinding.apply(routeId);
    final KafkaRouteConfig resolved = binding != null ? binding.resolve(authorization, topicName) : null;
    if (resolved != null) {
        final long resolvedId = resolved.id;
        final KafkaCacheRoute cacheRoute = supplyCacheRoute.apply(resolvedId);
        final long topicKey = cacheRoute.topicKey(topicName);
        final long partitionKey = cacheRoute.topicPartitionKey(topicName, partitionId);
        KafkaCacheClientProduceFan fan = cacheRoute.clientProduceFansByTopicPartition.get(partitionKey);
        if (fan == null) {
            KafkaCacheClientBudget budget = cacheRoute.clientBudgetsByTopic.get(topicKey);
            if (budget == null) {
                budget = new KafkaCacheClientBudget(creditor, supplyBudgetId.getAsLong(), bufferPool.slotCapacity());
                cacheRoute.clientBudgetsByTopic.put(topicKey, budget);
            }
            final String cacheName = String.format("%s.%s", supplyNamespace.apply(resolvedId), supplyLocalName.apply(resolvedId));
            final KafkaCache cache = supplyCache.apply(cacheName);
            final KafkaCacheTopic topic = cache.supplyTopic(topicName);
            final KafkaCachePartition partition = topic.supplyProducePartition(partitionId, localIndex);
            final KafkaCacheClientProduceFan newFan = new KafkaCacheClientProduceFan(resolvedId, authorization, affinity, budget, partition);
            cacheRoute.clientProduceFansByTopicPartition.put(partitionKey, newFan);
            fan = newFan;
        }
        final int leaderId = cacheRoute.leadersByPartitionId.get(partitionId);
        newStream = new KafkaCacheClientProduceStream(fan, sender, routeId, initialId, leaderId, authorization)::onClientMessage;
    }
    return newStream;
}